The Catalyst Sobha - Math Solution CBSE Board

Polynomials all formula

Polynomials definition, formula and types Class -10 chapter – 2, Polynomials(A) What is a quantity?A quantity is a thing which can be measured. There are two types of quantities:- (1)…

The Catalyst Sobha February 3, 2026

Class 10th math NCERT

Class 10 Real Numbers all formula

Class 10 Real Numbers all definitions Class -10, chapter – 1, Real Numbers(A) Prime numbers:-Member of a set of numbers which are divisible only by 1 and itself. In simple…

The Catalyst Sobha February 3, 2026

Class 9th math NCERT

NCERT class 9 Triangles

NCERT, Class 9, Triangles , Chapter–7, Exercise-7.1, Important questions with explained answers Q. 1. In quadrilateral ABCD, AC=AD and AB bisects angle A as shown in the figure. Show that…

The Catalyst Sobha January 26, 2026

Class 9th math NCERT

NCERT, Class 9, Lines and Angles , Chapter–6, Exercise-6.2, Important questions with explained answers

Q. 1. In the figure, if AB∥ CD,CD∥EF and y : z = 3 : 7. Find x. Q 2. In the figure, if AB∥CD,EF⊥CD and angle GED=126 degree. Find…

The Catalyst Sobha January 24, 2026

Class 9th math NCERT

NCERT, Class 9, Lines and Angles , Chapter–6, Exercise-6.1– Important questions

Q. 1. In the figure, lines AB and CD intersect at O. If angle AOC + angle BOE = 70 degree and angle BOD = 40 degree, find angle BOE…

The Catalyst Sobha January 22, 2026

Class 9th math NCERT

NCERT, Class 9, Introduction to Euclid’s Geometry , Chapter–5, Exercise-5.1– Step wise to the point solution of each question

Q. 1. Which of the following statements are true and which are false? Give reasons for your answers (i) Only one line can pass through a single point.(ii) There are…

The Catalyst Sobha January 20, 2026

Class 9th math NCERT Linear Equations in Two variables chapter–4 class 9 Linear Equations in Two variables exercise 4.2 class-9

NCERT, Class 9, Linear Equations in Two variables, Chapter–4, Exercise-4.2– Step wise to the point solution of each question

Q. 1. Which one of the following options is true, and why? y=3x+5 has (i) A unique solution, (ii) Only two solutions, (iii) Infinitely many solutions Q. 2. Write four…

The Catalyst Sobha January 18, 2026

Class 10th math NCERT

SAMPLE QUESTION PAPER Class X MATHEMATICS STANDARD (Code No.041) TIME: 3 hours MAX.MARKS: 80 General Instructions: Read the following instructions carefully and follow them: 1. This question paper contains…

The Catalyst Sobha January 16, 2026

Class 9th math NCERT Linear Equations in Two variables chapter–4 class 9 Linear Equations in Two variables exercise 4.1 class-9

NCERT, Class 9, Linear Equations in Two variables, Chapter–4, Exercise-4.1– Step wise accurate solution of each question

The Catalyst Sobha August 31, 2025

Class 9th math NCERT Coordinate Geometry chapter–3 class 9 Coordinate Geometry exercise 3.2 class-9

NCERT, Class 9, Coordinate Geometry, Chapter–3, Exercise-3.2– Exact solution of each question.

The Catalyst Sobha August 24, 2025